Input or output devices (graph readers G 06 K 11/00; using function plotters, co-ordinate plotters G 06 K 15/22)
7
/
06
•
Programming arrangements, e.g. plugboard for interconnecting functional units of the computer; Digital programming
7
/
10
•
Power supply arrangements
7
/
12
•
Arrangements for performing computing operations, e.g. amplifiers specially adapted therefor (amplifiers in general H 03 F)
7
/
122
•
•
for optimisation, e.g. least square fitting, linear programming, critical path analysis, gradient method [2]
7
/
14
•
•
for addition or subtraction (of vector quantities G 06 G 7/22)
7
/
16
•
•
for multiplication or division
7
/
161
•
•
•
with pulse modulation, e.g. modulation of amplitude, width, frequency, phase, or form [2]
7
/
162
•
•
•
using galvano-magnetic effects, e.g. Hall effect; using similar magnetic effects [2]
7
/
163
•
•
•
using a variable impedance controlled by one of the input signals, variable amplification or transfer function [2]
7
/
164
•
•
•
using means for evaluating powers, e.g. quarter square multiplier (evaluating powers G 06 G 7/20) [3]
7
/
18
•
•
for integration or differentiation (G 06 G 7/19 takes precedence) [3]
7
/
182
•
•
•
using magnetic elements [3]
7
/
184
•
•
•
using capacitive elements [3]
7
/
186
•
•
•
•
using an operational amplifier comprising a capacitor or a resistor in the feedback loop [3]
7
/
188
•
•
•
using electromechanical elements [3]
7
/
19
•
•
for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions (Fourier or spectrum analysis G 01 R 23/16; speech analysis or synthesis G 10 L) [3]
7
/
195
•
•
•
using electro-acoustic elements [3]
7
/
20
•
•
for evaluating powers, roots, polynomes, mean square values, standard deviation (G 06 G 7/122, G 06 G 7/28 take precedence; gamma correction in television systems H 04 N 5/202, H 04 N 9/69) [3]
7
/
22
•
•
for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities (trigonometric computations using simultaneous equations G 06 G 7/34)
7
/
24
•
•
for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
7
/
25
•
•
for discontinuous functions, e.g. backlash, dead zone, limiting, absolute value, or peak value [2]
7
/
26
•
•
Arbitrary function generators (using orthogonal functions, e.g. Fourier series, G 06 G 7/19; using curve follower G 06 K 11/02)
7
/
28
•
•
•
for synthesising functions by piecewise approximation
7
/
30
•
•
for interpolation or extrapolation (G 06 G 7/122 takes precedence) [2]
7
/
32
•
•
for solving of equations
7
/
34
•
•
•
of simultaneous equations (G 06 G 7/122 takes precedence) [2]
7
/
36
•
•
•
of single equations of quadratic or higher degree (G 06 G 7/22, G 06 G 7/24 take precedence)
7
/
38
•
•
•
of differential or integral equations
7
/
40
•
•
•
•
of partial differential equations (simulating specific devices G 06 G 7/48)
7
/
42
•
•
•
•
•
using electrolytic tank
7
/
44
•
•
•
•
•
using continuous medium, current-sensitive paper
7
/
46
•
•
•
•
•
using discontinuous medium, e.g. resistance network
7
/
48
•
Analogue computers for specific processes, systems, or devices, e.g. simulators [2]
7
/
50
•
•
for distribution networks, e.g. for fluids (G 06 G 7/62
takes precedence)
